The A1351 device is a high precision, programmable linear Hall effect
Sensor with a pulse width modulated (PWM) output. The duty cycle (DC)
of the PWM output signal is proportional to an applied magnetic field.
The A1351 device converts an Analog signal from its internal Hall Sensor
element to a digitally encoded PWM output signal. The coupled noise
immunity of the digitally encoded PWM output is far superior to the
noise immunity of an Analog output signal. A simple RC network CAN
be used to convert the digital PWM signal back to Analog signal. By Allegro MicroSystems, Inc.